2021 Subaru Ascent problems and complaints
Owners have filed 106 complaints with NHTSA about the 2021 Subaru Ascent. The most-reported areas: Power Train (21), Electrical System (18), Unknown Or Other (16).
Key takeaways
- 106 owner complaints on file with NHTSA.
- 4 involve a crash, 1 a fire, 4 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Power Train | 21 | 20% |
| Electrical System | 18 | 17% |
| Unknown Or Other | 16 | 15% |
| Visibility/Wiper | 15 | 14% |
| Lane Departure | 15 | 14% |
| Engine | 13 | 12% |
| Service Brakes | 9 | 8% |
| Forward Collision Avoidance | 8 | 8% |
| Structure | 7 | 7% |
| Steering | 7 | 7% |
| Visibility | 3 | 3% |
| Fuel/Propulsion System | 2 | 2% |
One complaint can name several components, so shares add up to more than 100%.
Parts for the 2021 Subaru Ascent
GarageDex's verified specs for this car. Each Buy button searches Amazon for that exact part.
- Battery
- Engine oil
- Oil filter
- Engine air filter
- Cabin air filter
- Wiper blades
- Headlight bulb
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| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Subaru Ascent SUV AWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Power Train,engine - filed 2026-11-05
Twin Falls Subaru left me in a dangerous position with my transmission failing catastrophically on the highway 72 hours after major service is a severe safety hazard My 2021 Subaru Ascent with 56,420 miles, still under the 60,000 mile/5 year warranty, went to Twin Falls Subaru with diagnostic codes P0137, and P2096 on ...
Forward Collision Avoidance - filed 2026-10-31
2021 Subaru Ascent was involved in a serious collision with highway maintenance equipment near [XXX]. The vehicle's EyeSight Driver Assist Technology, specifically Adaptive Cruise Control and Pre-Collision Braking, is suspected of failing to respond appropriately to slower-moving equipment directly ahead. At the time o...
Power Train - filed 2026-10-24
Trying to turn onto the street from a parking lot the vehicle wasn't accelerating as expected and I wasn't able to turn as expected. I am taking the car in soon to be diagnosed with an issue.
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More for the 2021 Subaru Ascent
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.